Effect of Gas Tamponade on the Intraocular Lens Position and Refractive Error after Phacovitrectomy: A Swept-Source Anterior Segment OCT Analysis.
Ophthalmology
; 127(4): 511-515, 2020 04.
Article
em En
| MEDLINE
| ID: mdl-31767435
PURPOSE: To investigate the intraocular lens (IOL) position and refractive outcomes after cataract surgery and phacovitrectomy using swept-source anterior segment OCT (SS-ASOCT). DESIGN: Retrospective case series. PARTICIPANTS: Patients underwent cataract surgery (group A: 34 eyes), phacovitrectomy without gas tamponade (group B: 20 eyes), and phacovitrectomy with gas tamponade (group C: 22 eyes). METHODS: Various parameters associated with the anterior chamber and lens were measured by SS-ASOCT (CASIA2; Tomey Corp, Nagoya, Japan) before and after surgery. Axial lengths were measured by optical biometry (IOLMaster; Carl Zeiss, Oberkochen, Germany). The refraction (spherical equivalent) was measured 1 week and 1 month after surgery. MAIN OUTCOME MEASURES: Refractive outcomes and the parameters measured by SS-ASOCT were statistically evaluated. RESULTS: The overall mean median absolute error (MedAE) was 0.34 diopters (D) at 1 month postoperatively. The MedAE was greater in group C (0.47 D) than in group A (0.31 D) and group B (0.20 D). The overall mean refractive prediction error (ME) was -0.22±0.62 D at 1 month postoperatively. The ME was significantly greater in group C (-0.82±0.64 D) than in group A (0.08±0.39 D) and group B (-0.07±0.45 D) (P < 0.001, P < 0.001), indicating a greater myopic shift in group C. The forward movement of the IOL position was significantly correlated with a greater ME at 1 month (R = 0.53, P < 0.001). CONCLUSIONS: Forward fixation of the IOL caused myopic refractive errors even after the gas had disappeared in eyes that underwent phacovitrectomy with gas tamponade.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Erros de Refração
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Hexafluoreto de Enxofre
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Vitrectomia
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Facoemulsificação
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Tamponamento Interno
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Lentes Intraoculares
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Segmento Anterior do Olho
Tipo de estudo:
Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adult
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Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article